Weather Records on 24 September 1977

814 weather records were set or tied worldwide on 24 September 1977. Highest significance: Cambridge Galt Moe, CA.

Key Facts for 24 September 1977

On 24 September 1977, 814 weather records were set or tied at long-record stations worldwide.
194 were record highs and 90 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 28 monthly and 786 daily.
Cambridge Galt Moe set a daily record precipitation of 58.8 mm (2.3 in) on 24 September 1977.
Across 166 earlier years (1803 to 2026) the same calendar date averaged 425 records.

Record Map

814 stations

814 station records on 24 September 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 24 September 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cambridge Galt Moe	Canada	Record daily precipitation	58.8 mm (2.3 in)	76 of 100 (Major)
Mc Clusky	United States	Record daily precipitation	69.3 mm (2.7 in)	65 of 100 (Major)
Pantapin	Australia	Record daily precipitation	30.0 mm (1.2 in)	62 of 100 (Major)
Cardoso Moreira	Brazil	Record daily precipitation	114.4 mm (4.5 in)	60 of 100 (Major)
Moose Lake 1 SSE	United States	Record daily precipitation	59.9 mm (2.4 in)	58 of 100 (Notable)
Ibimirim (Jeritaco)	Brazil	Record daily precipitation	57.3 mm (2.3 in)	56 of 100 (Notable)
Wilton	United States	Record daily precipitation	78.7 mm (3.1 in)	56 of 100 (Notable)
Sholapur	India	Record daily precipitation	130.0 mm (5.1 in)	53 of 100 (Notable)
Sao Manuel	Brazil	Record daily precipitation	103.7 mm (4.1 in)	52 of 100 (Notable)
Bady Bassit	Brazil	Record daily precipitation	66.0 mm (2.6 in)	50 of 100 (Notable)
Experiment Station	South Africa	Record daily precipitation	39.4 mm (1.6 in)	49 of 100 (Notable)
Two Harbors	United States	Record daily precipitation	72.4 mm (2.9 in)	49 of 100 (Notable)
Drake	United States	Record daily precipitation	62.0 mm (2.4 in)	49 of 100 (Notable)
Wynne	United States	Record daily precipitation	99.3 mm (3.9 in)	48 of 100 (Notable)
Beulah 1 W	United States	Record daily precipitation	45.7 mm (1.8 in)	47 of 100 (Notable)
1 WSW Princeton	United States	Record daily precipitation	45.2 mm (1.8 in)	46 of 100 (Notable)
Mt Carmel	United States	Record daily precipitation	49.5 mm (1.9 in)	45 of 100 (Notable)
Hernando	United States	Record daily precipitation	77.5 mm (3.1 in)	45 of 100 (Notable)
Caruthersville	United States	Record daily precipitation	59.4 mm (2.3 in)	45 of 100 (Notable)
Center 4SE	United States	Record daily precipitation	39.4 mm (1.6 in)	45 of 100 (Notable)
Dickinson Exp STN	United States	Record daily precipitation	48.3 mm (1.9 in)	45 of 100 (Notable)
Fergus Shand Dam	Canada	Record daily precipitation	38.4 mm (1.5 in)	44 of 100 (Notable)
Monteiro Lobato	Brazil	Record daily precipitation	66.4 mm (2.6 in)	43 of 100 (Notable)
Mtunzini	South Africa	Record daily precipitation	76.3 mm (3.0 in)	43 of 100 (Notable)
Pocahontas 1	United States	Record daily precipitation	57.2 mm (2.3 in)	43 of 100 (Notable)
Granville	United States	Record daily precipitation	42.4 mm (1.7 in)	43 of 100 (Notable)
Toronto	Canada	Record daily precipitation	59.9 mm (2.4 in)	42 of 100 (Notable)
Amatikulu(Mill)	South Africa	Record daily precipitation	51.9 mm (2.0 in)	42 of 100 (Notable)
Woodstock	Canada	Record daily precipitation	63.2 mm (2.5 in)	41 of 100 (Notable)
Grand Marais	United States	Record daily precipitation	69.6 mm (2.7 in)	41 of 100 (Notable)
Waseca S Rsch & Outreach Ctr	United States	Record daily precipitation	67.6 mm (2.7 in)	41 of 100 (Notable)
Towner 2 NE	United States	Record daily precipitation	39.6 mm (1.6 in)	41 of 100 (Notable)
Woodburn	Australia	Record daily precipitation	26.6 mm (1.0 in)	40 of 100 (Notable)
Socorro	Brazil	Record daily precipitation	91.3 mm (3.6 in)	40 of 100 (Notable)
Barletta	South Africa	Record daily precipitation	41.2 mm (1.6 in)	40 of 100 (Notable)
Paragould	United States	Record daily precipitation	75.2 mm (3.0 in)	40 of 100 (Notable)
Idaho City	United States	Record daily precipitation	26.9 mm (1.1 in)	40 of 100 (Notable)
Charles City	United States	Record daily precipitation	35.6 mm (1.4 in)	40 of 100 (Notable)
Hinckley	United States	Record daily precipitation	32.8 mm (1.3 in)	40 of 100 (Notable)
Wahpeton 3 N	United States	Record daily precipitation	34.3 mm (1.4 in)	40 of 100 (Notable)
Toronto Lester B. Pearson Int'	Canada	Record daily precipitation	49.4 mm (1.9 in)	39 of 100 (Notable)
Gingindlovu	South Africa	Record daily precipitation	60.0 mm (2.4 in)	39 of 100 (Notable)
Minot Exp STN	United States	Record daily precipitation	37.8 mm (1.5 in)	39 of 100 (Notable)
Port Hope	Canada	Record daily precipitation	25.7 mm (1.0 in)	38 of 100 (Notable)
Bergzicht	South Africa	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Bradford 4SW Rsch 5	United States	Record daily precipitation	58.4 mm (2.3 in)	38 of 100 (Notable)
Robe Comparison	Australia	Record low minimum temperature	3.0 C (37.4 F)	37 of 100 (Notable)
Santa Terezinha	Brazil	Record daily precipitation	48.5 mm (1.9 in)	37 of 100 (Notable)
Durham	Canada	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Port Dalhousie	Canada	Record daily precipitation	30.6 mm (1.2 in)	37 of 100 (Notable)
Ladysdale	South Africa	Record daily precipitation	28.5 mm (1.1 in)	37 of 100 (Notable)
Canby	United States	Record daily precipitation	45.7 mm (1.8 in)	37 of 100 (Notable)
Tecumseh 1W	United States	Record daily precipitation	42.2 mm (1.7 in)	37 of 100 (Notable)
Platteville	United States	Record daily precipitation	55.1 mm (2.2 in)	37 of 100 (Notable)
Usina Americana (Cpfl)	Brazil	Record daily precipitation	31.5 mm (1.2 in)	36 of 100 (Notable)
Caledonia	United States	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Estacao Experimental	Brazil	Record daily precipitation	77.8 mm (3.1 in)	35 of 100 (Notable)
Amatikulu	South Africa	Record daily precipitation	61.0 mm (2.4 in)	35 of 100 (Notable)
Newton 6 SSE	United States	Record daily precipitation	40.6 mm (1.6 in)	35 of 100 (Notable)
Butte 5SE	United States	Record daily precipitation	42.7 mm (1.7 in)	35 of 100 (Notable)

Counts by Type and Timescale

814 records

Records set or tied on 24 September 1977 by type: Highest daily maximum 73, Lowest daily maximum 49, Highest daily minimum 121, Lowest daily minimum 41, Heaviest daily rainfall 530.

Records on 24 September 1977 by type
Record type	Records
Highest daily maximum	73
Lowest daily maximum	49
Highest daily minimum	121
Lowest daily minimum	41
Heaviest daily rainfall	530
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 24 September 1977 by timescale: all-time 0, monthly 28, daily 786.

How Much Records Were Beaten By

708 broken records

Margins by which the 708 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.8. Ties are not counted.

Top 20 by Significance

24 September 1977

Top 20 records on 24 September 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
24 September 1977	Cambridge Galt Moe, CA	daily rain	58.8 mm (2.3 in)	38.0 mm (1.5 in)	93 years	76 of 100 (Major)
24 September 1977	Mc Clusky, US	monthly rain	69.3 mm (2.7 in)	27.9 mm (1.1 in)	30 years	65 of 100 (Major)
24 September 1977	Pantapin, AU	daily rain	30.0 mm (1.2 in)	20.9 mm (0.8 in)	54 years	62 of 100 (Major)
24 September 1977	Cardoso Moreira, BR	monthly rain	114.4 mm (4.5 in)	71.8 mm (2.8 in)	24 years	60 of 100 (Major)
24 September 1977	Moose Lake 1 SSE, US	daily rain	59.9 mm (2.4 in)	43.1 mm (1.7 in)	43 years	58 of 100 (Notable)
24 September 1977	Ibimirim (Jeritaco), BR	monthly rain	57.3 mm (2.3 in)	27.3 mm (1.1 in)	22 years	56 of 100 (Notable)
24 September 1977	Wilton, US	monthly rain	78.7 mm (3.1 in)	38.3 mm (1.5 in)	6 years	56 of 100 (Notable)
24 September 1977	Sholapur, IN	daily rain	130.0 mm (5.1 in)	61.4 mm (2.4 in)	52 years	53 of 100 (Notable)
24 September 1977	Sao Manuel, BR	monthly rain	103.7 mm (4.1 in)	41.6 mm (1.6 in)	19 years	52 of 100 (Notable)
24 September 1977	Bady Bassit, BR	daily rain	66.0 mm (2.6 in)	44.0 mm (1.7 in)	34 years	50 of 100 (Notable)
24 September 1977	Experiment Station, ZA	daily rain	39.4 mm (1.6 in)	32.8 mm (1.3 in)	48 years	49 of 100 (Notable)
24 September 1977	Two Harbors, US	daily rain	72.4 mm (2.9 in)	35.6 mm (1.4 in)	43 years	49 of 100 (Notable)
24 September 1977	Drake, US	monthly rain	62.0 mm (2.4 in)	16.3 mm (0.6 in)	46 years	49 of 100 (Notable)
24 September 1977	Wynne, US	daily rain	99.3 mm (3.9 in)	53.6 mm (2.1 in)	40 years	48 of 100 (Notable)
24 September 1977	Beulah 1 W, US	daily rain	45.7 mm (1.8 in)	37.3 mm (1.5 in)	4 years	47 of 100 (Notable)
24 September 1977	1 WSW Princeton, US	daily rain	45.2 mm (1.8 in)	26.7 mm (1.1 in)	75 years	46 of 100 (Notable)
24 September 1977	Mt Carmel, US	daily rain	49.5 mm (1.9 in)	34.3 mm (1.4 in)	47 years	45 of 100 (Notable)
24 September 1977	Hernando, US	daily rain	77.5 mm (3.1 in)	32.5 mm (1.3 in)	63 years	45 of 100 (Notable)
24 September 1977	Caruthersville, US	daily rain	59.4 mm (2.3 in)	36.5 mm (1.4 in)	40 years	45 of 100 (Notable)
24 September 1977	Center 4SE, US	daily rain	39.4 mm (1.6 in)	25.4 mm (1.0 in)	24 years	45 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1803 to 1977

Records set or tied on this calendar date in each year from 1803 to 1977. 1977 had 814 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-24 in each year
Year	Records
1803	1
1835	1
1836	1
1842	1
1847	1
1852	2
1854	2
1857	2
1858	1
1859	1
1860	1
1863	1
1864	1
1865	1
1866	1
1867	2
1868	1
1870	3
1871	1
1872	1
1873	1
1874	2
1875	2
1876	1
1877	3
1878	2
1881	5
1884	1
1885	2
1887	1
1889	5
1890	1
1891	2
1892	5
1893	1
1894	2
1895	7
1896	2
1898	1
1899	4
1900	5
1901	3
1902	10
1903	8
1904	9
1905	7
1906	5
1907	20
1908	23
1909	31
1910	8
1911	11
1912	49
1913	9
1914	23
1915	159
1916	253
1917	87
1918	7
1919	26
1920	69
1921	23
1922	49
1923	70
1924	175
1925	146
1926	630
1927	194
1928	603
1929	137
1930	488
1931	463
1932	354
1933	424
1934	367
1935	449
1936	329
1937	237
1938	355
1939	331
1940	319
1941	319
1942	918
1943	413
1944	334
1945	475
1946	425
1947	704
1948	422
1949	554
1950	778
1951	580
1952	425
1953	346
1954	269
1955	577
1956	427
1957	370
1958	725
1959	414
1960	487
1961	680
1962	360
1963	715
1964	329
1965	624
1966	410
1967	394
1968	433
1969	278
1970	1,046
1971	485
1972	480
1973	1,208
1974	1,204
1975	1,116
1976	556
1977	814
1978	619
1979	577
1980	633
1981	604
1982	702
1983	1,128
1984	1,565
1985	771
1986	1,207
1987	729
1988	740
1989	1,668
1990	969
1991	519
1992	1,250
1993	1,055
1994	842
1995	1,251
1996	676
1997	1,238
1998	945
1999	933
2000	1,966
2001	1,097
2002	885
2003	863
2004	600
2005	1,256
2006	1,306
2007	1,244
2008	633
2009	866
2010	1,340
2011	770
2012	545
2013	514
2014	764
2015	770
2016	732
2017	1,402
2018	497
2019	516
2020	754
2021	457
2022	395
2023	689
2024	778
2025	576
2026	389

Download the Data

Data for records on 1977-09-24: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 10	523
10 to 20	113
20 to 30	44
30 to 40	19
40 to 50	5
50 to 60	2
60 to 70	1
70 to 80	1